Welcome to DECISION




Driver Effect of Cognitive Impairment and Spatial Orientation and Navigation (DECISION for short) is a research study funded by the UK Department for Transport.

The study investigates how everyday car driving can change in older drivers.



Maintaining independence is an important aspect of healthy aging. Retaining the ability to drive safely is often reported as key to maintaining independence. As we age, our thinking and decision-making ability changes. Some of these changes may help us drive more safely, but other changes may increase our risk of being involved in a driving incident.

The DECISION Study seeks to identify which age-related changes in thinking ability predict safe versus unsafe driving. We will use this information to develop new assessments that can help older people drive safely and independently as they age.



We use a combination of established questionnaires and psychology tasks, combined with innovative new assessments, to create driver-specific profiles. We then analyse how different profiles predict different driving styles. All of this can be done online, so you can take part in the study from anywhere in the UK.



We are looking for current drivers to register their interest in our research, ready for the study to go live in early 2021. You can take part from anywhere in the UK.

If you would like to learn more about participating in the DECISION Study, please first check our eligibility requirements below.



To participate in our study, you need to meet all of the following criteria:

  • Aged at least 65 years.
  • Holder of a valid UK driving licence.
  • Currently driving.

If you meet all of these criteria, and would like to learn more about participating in the DECISION Study, then please click the Register button at the top of this page.

Prof. Michael Hornberger
Prof. Michael Hornberger
Prof. Hornberger is the Professor of Applied Dementia Research at the Norwich Medical School, University of East Anglia. Prof. Hornberger is the lead researcher of the DECISION Study.
Dr. Mary Fisher-Morris
Dr. Mary Fisher-Morris
Dr. Morris is a chartered psychologist and sits on the Secretary of State for Transport’s Honorary Medical Advisory Panel on Driving and Psychiatric Disorders. Dr. Fisher-Morris is co-lead of the DECISION Study.
Dr. Stephen Jeffs
Dr. Stephen Jeffs
Dr. Stephen Jeffs is a research psychologist with extensive expertise in testing older participants. Dr. Jeffs is the research associate for the DECISION project and will lead the recrtuiment and testing of participants.